Donnie is 7 years old. Donnie's age is 3 years less than half of Ana's age. The relationship between the ages can be modeled by the equation 1/2x - 3 = 7, where x is Ana's age. How old is Ana?

Answer:

x=6+9z

Step-by-step explanation:

x-2=4+9z

x-2+2=4+2+9z

x=6+9z

Answer:

[tex]4^{8}[/tex]

Step-by-step explanation:

Whenever multiplying the same values with exponentials, they add up. So, 3+5 = 8.

[tex]4^{3} . 4^{5} = 4^{8}[/tex]

Answer:

Step-by-step explanation:

Kcbsakhucvdwaiucvaewiugcvawdiugvcdwakugcwvjugvcdwauhbcwjuagvcejygavcjywetvfsjygeavcsaegycygaecyjgasa c

Answer:

x=6

b= 126

Step-by-step explanation:

8x+78 = 2x+114

8x-2x = 114-78

6x=36

x=6

--------

b=2x6+114

b= 126

Answer:

10.94

Step-by-step explanation:

I'm not gonna put step bye step but thats the answer

15, 35, 55, 75, 95, 115, 135.

Step-by-step explanation:

From what I'm seeing you're adding 20 to each term. So you can count from 15 to whatever term you're looking for; which in this case, the 7th term is 135.

Answer:

135

Step-by-step explanation:

15,35,55,75,95,115,135 as u can see as u keep going ur adding 20 more

Answer:

B.....................

Answer:

Yes, Considering They Are all Negative, Or if Its Wrong then, It would Be No, Because They might Be Negitive but, They Done Count By the Same Number, My Answer Would be Yes.

Step-by-step explanation:

Answer:

y = (2/3)x + 7

Step-by-step explanation:

Slope intercept form is y = mx +b

1) We start off with y =

2) m = slope. Since we know that the slope is 2/3 we can plug it in. y = 2/3x

3) b is y-intercept which = 7.

Put it all together: y = 2/3 x + 7

let x=cost/lb of walnuts

let y=cost/lb of chocolate chips

..

3x+5y=16

6x+2y=22

6x+10y=32 (mult. eq by 2)

6x+2y=22

subtract:

8y=10

y=10/8=1.25

x=16-5y=9.75

cost/lb of walnuts=$1.25

cost/lb of chocolate chips=$9.75

Answer:

B: (-2,1)

Step-by-step explanation:

The point of intersection (:

X°5

Step-by-step explanation:

Answer:

Step-by-step explanation:

-5 × -5 = 25

and

5 × 5 =25

Hope this helps! I would really appreciate it if you would please mark me brainliest! Have a blessed day!

Step-by-step explanation:

The answer is 72

Answer:

option c.

c).3^3

.........................

Answer:

x = -2

y = -6

Step-by-step explanation:

System of equations given in the question are,

y = x - 4 ---------(1)

y = 4x + 2 -------(2)

For equation (1)

y-intercept of the line → (0, -4)

x-intercept of the line → (4, 0)

Joining these points we can get the graph of the line represented by equation (1).

Similarly, for equation (2),

y - intercept of the line → (0, 2)

x- intercept of the line → (-0.5, 0)

Joining these points we will get the graph of the equation (2).

Solution of these equations will be the point of intersection or common points of both the equations.

From the graph attached,

Solution of the system of equations will be → x = -2

                                                                           y = -6

The 7th month

Step-by-step explanation:

Answer:

5 miles per hour

Step-by-step explanation:

the answer is 5 miles per hour, sorry if I am wrong.

Answer:

v = 72 km/h

Step-by-step explanation:

Given that,

The distance between school a and b is 360 km.

A bus leaves school a at 9:30 and reaches school b at 2:30

Total time, t = 5 hours

We know that, the speed of an object is equal to the total distance divided by total time taken.

So,

v = d/t

[tex]v=\dfrac{360\ km}{5\h}\\\\v=72\ km/h[/tex]

So, the required speed is 72 km/h.

Answer:

[tex]\frac{1}{6}[/tex]

Step-by-step explanation:

Given: One serving of special sundae is made up of one third mint ice cream one third chocolate and one third vanilla.

To find: Ratio of vanilla ice cream is in a half serving

Solution:

Ratio of mint ice cream in one serving [tex]=\frac{1}{3}[/tex]

Ratio of chocolate ice cream in one serving [tex]=\frac{1}{3}[/tex]

Ratio of vanilla ice cream in one serving [tex]=\frac{1}{3}[/tex]

Here, [tex]\frac{1}{3} +\frac{1}{3} +\frac{1}{3} =1[/tex]

Therefore,

Ratio of vanilla ice cream is in a half serving [tex]=\frac{1}{3}(\frac{1}{2})=\frac{1}{6}[/tex]

Answer:

-143

Step-by-step explanation:

you plug -7 in the x variables

-4(-7)^2-7(-7)+4 = -143

Answer:

I would say 6

Step-by-step explanation:

Answer:

Use a caculator?

Step-by-step explanation:

Answer:

4x²+12x+9

Step-by-step explanation:

1.   2x times 2x = 4x²

2.  2x times 3 = 12x

3.  3 x 3 = 9   or  3² also equals 9

Answer:

angle R=135 degrees

angle S=45 degrees

angle Q=45 degrees

Step-by-step explanation:

angle R=angle T

angle S=angle Q

angle S=180-135=45

Answer:

135°, 45°, 45°

Step-by-step explanation:

The opposite angles in a parallelogram are congruent, thus

∠ R = ∠ T = 135°

Consecutive angles are supplementary , sum to 180°, then

∠ S + ∠ T = 180° , that is

∠ S + 135° = 180° ( subtract 135° from both sides )

∠ S = 45°, then

∠ Q = 45° ( opposite and congruent to ∠ S )

9514 1404 393

Answer:

  5.625

Step-by-step explanation:

The angle bisector divides the sides proportionally.

  x/7.5 = 3/4

  x = 7.5(3/4) . . . . multiply by 7.5

  x = 5.625

Answer:

1/5 + 1 4/5 = x.

Step-by-step explanation:

b=1/5x and b+[tex]1\frac{4}{5}[/tex]=x are the equations used to find the weight of blueberries Lacey has. 9/20 is the weight of blueberries.

Two or more expressions with an Equal sign is called as Equation.

Given,

Lacey picks blueberries and raspberries from her garden.

Let b =weight of Blueberries

x=weight of raspberries

Lacey has 1/5 as many pounds of blueberries as raspberrie

b=1/5x..(1)

[tex]1\frac{4}{5}[/tex] pounds more blueberries, she will have equal weights of berries

b+[tex]1\frac{4}{5}[/tex]=x

b=x-1 4/5

b=x-9/5

So substitute b in equation 1

x-9/5=1/5x

x-1/5x=9/5

x(1-1/5)=9/5

x(4/5)=9/5

x=9/4

x=[tex]2\frac{1}{4}[/tex]

b=9/4-9/5

b=45-36/20=9/20

Hence b=1/5x and b+[tex]1\frac{4}{5}[/tex]=x are the equations used to find the weight of blueberries Lacey has. 9/20 is the weight of blueberries.

To learn more on Equation:

https://brainly.com/question/10413253

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